VocalRangeTester.com publishes two types of content: educational articles about vocal range, voice science, and singing technique — and singer analysis articles that document the vocal ranges of well-known artists. This page explains exactly how both types of content are researched, written, reviewed, and maintained.
These guidelines exist because we believe readers deserve to know where information comes from, how it was verified, and what happens when something turns out to be wrong.
Who Writes the Content
All content on VocalRangeTester.com is written by John Mayer, the site’s founder and sole author. John is a music researcher and vocal range analyst who has spent five years studying vocal music, voice science, and singer analysis across genres.
There are no anonymous contributors, no outsourced writers, and no unreviewed content published on this site. Every article carries a named author because every article has one.
Our Editorial Standard
Every piece of content on VocalRangeTester.com is held to a single test before publication:
Would a curious, knowledgeable person find this genuinely useful — or would they feel like they wasted their time?
If the answer is the latter, the content does not get published. This applies equally to a 2,000-word singer analysis and a 400-word tool explanation.
We do not publish content to fill keyword gaps, pad page count, or manufacture the appearance of expertise. If a topic isn’t covered well enough to be genuinely useful, it isn’t covered yet.
How Educational Articles Are Researched
Educational articles on this site cover topics such as how vocal range works, how voice type is classified, how breathing technique affects high notes, and how pitch accuracy is measured.
Research for these articles draws from:
- Established vocal pedagogy frameworks and music theory resources
- Published acoustic science and speech pathology literature
- Credible music education institutions and vocal training methodologies
- Practical testing and observation using the tools built on this site
All factual claims are verified before publication. Where scientific consensus is clear, we reflect it accurately. Where expert opinion varies or evidence is limited, we say so explicitly rather than presenting one interpretation as definitive.
We do not present anecdotal claims as established fact, and we do not overstate what browser-based vocal tools can measure.
How Singer Range Articles Are Researched
Singer analysis articles are among the most research-intensive content on this site. Vocal range figures are frequently misreported across the internet — numbers are copied without verification, extreme notes are listed without context, and the difference between a singer’s working range and their absolute extreme range is routinely ignored.
Our research process for singer range articles:
Step 1 — Source identification. We identify the singer’s studio discography, verified live recordings, and any documented performances known to feature their upper or lower range extremes.
Step 2 — Cross-referencing. Range figures are never drawn from a single source. We cross-reference multiple recordings to confirm that a cited note appears reliably, not as a one-time studio anomaly.
Step 3 — Range distinction. We distinguish clearly between a singer’s comfortable working range (the notes they use regularly across their recorded output) and their documented extreme range (the lowest or highest notes captured in known recordings). Both matter — but they mean different things.
Step 4 — Dispute disclosure. Where a singer’s range is genuinely disputed in the research — due to conflicting sources, live vs. studio differences, or voice changes over time — the article discloses the dispute rather than presenting a single number as fact.
Our Policy on AI-Assisted Content
VocalRangeTester.com may use AI writing tools as part of the drafting process. We are transparent about this rather than hiding it.
However, every piece of content published on this site is:
- Reviewed and edited by John Mayer personally before publication
- Fact-checked against credible sources, not accepted as written
- Rewritten wherever the draft contains inaccuracies, vague claims, or generic filler
- Held to the same editorial standard as content drafted without AI assistance
We do not publish raw AI output. The standard is the quality of the final published page — not the method used to produce the first draft. Any AI-drafted content that does not meet our accuracy and usefulness standard is rewritten or discarded before publication.
How Content Is Updated
Vocal range research evolves. Singers release new recordings that extend documented ranges. Tools are improved. Articles occasionally contain errors that need correcting.
Content on this site is updated when:
- A new recording meaningfully changes a singer’s documented range
- A factual error is identified by a reader, expert, or internal review
- A tool’s methodology changes in a way that affects how results should be interpreted
- An article becomes significantly out of date with current understanding
Updated articles display a visible “Last updated” date alongside the original publication date. Readers can always tell when an article was most recently reviewed.
Corrections Policy
Errors happen. When they do, we fix them — promptly and transparently.
If you find a factual error anywhere on this site — a singer’s range listed incorrectly, a scientific claim that doesn’t hold up, a tool result that appears inconsistent — please report it via the Contact page.
All correction requests are reviewed personally. Verified errors are corrected on the relevant page, and a correction note is added where the change is material. We do not quietly delete or rewrite content to hide past mistakes.
What We Do Not Publish
- Vocal range figures presented as fact without cross-referenced sourcing
- Health, medical, or therapeutic claims about the voice
- Content that exists only to target a search keyword with no educational substance
- Copied, scraped, or substantially unedited content from other sources
- Speculative claims about a singer’s range not supported by documented recordings
Related Pages
- About VocalRangeTester — the site’s mission and purpose
- About the Author — John Mayer’s background and research standards
- How It Works — how the tools on this site measure vocal range
- Contact — submit corrections or feedback
These editorial guidelines were written and are maintained by John Mayer, founder of VocalRangeTester.com. Last updated: June 2026.